This is the view peeking at the back of the right Rolls-Royce Trent 1000 turbofan fitted to the first Dreamliner. It is striking how spacious and uncluttered it is, especially as compared against older engines designs like that of the JT8D.

Rolls-Royce is busy testing the 'Package B' version of this engine, as the initial design (already delivered to All Nippon) falls short of fuel consumption promises. The first flight of a 'Package B' engine was just last month.